Thing of it is, if you fall out with one half of a married couple, expecting them to choose you over their spouse is generally advised against, even if they’re your parents.
And, while it seems to be something OP’s husband said, the question for me is, was OP present at the time? What was said?Did she support what her DH said? What was her reaction?
With the lack of context, it’s really hard to know what to suggest to improve the situation.